Effect of stress ratio on fatigue lifetime of high Nb containing TiAl alloy at elevated temperature

The effect of stress ratio (R) on fatigue lifetime of a cast Ti–45Al–8.0Nb–0.2W–0.2B–0.1Y (at.%) alloy was investigated at 750°C. Fatigue tests with various stress ratios ranging from 0.1 to 1 were performed using a mini servo-hydraulic fatigue machine inside a chamber of scanning electron microscop...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Materials & design 2015-11, Vol.84, p.378-384
Hauptverfasser:	Yu, Long, Song, Xiping, Zhang, Min, Jiao, Zehui, Yu, Huichen
Format:	Artikel
Sprache:	eng
Schlagworte:	Crack propagation Cyclic creep Fatigue (materials) Fatigue cracking Fatigue failure Fatigue lifetime Fracture mechanics In situ observation Intermetallic compounds Intermetallics Scanning electron microscopy Stress ratio Titanium aluminide Titanium base alloys
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!